Abstract
Carbonate precursors of Y3Al5O12 (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.
| Original language | English |
|---|---|
| Pages (from-to) | 1514-1523 |
| Number of pages | 10 |
| Journal | Journal of Materials Research |
| Volume | 15 |
| Issue number | 7 |
| Publication status | Published - 2000 Jul 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
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Well-sinterable Y3Al5O12 powder from carbonate precursor. / Li, Ji Guang; Ikegami, Takayasu; Lee, Jong Heun; Mori, Toshiyuki.
In: Journal of Materials Research, Vol. 15, No. 7, 01.07.2000, p. 1514-1523.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Well-sinterable Y3Al5O12 powder from carbonate precursor
AU - Li, Ji Guang
AU - Ikegami, Takayasu
AU - Lee, Jong Heun
AU - Mori, Toshiyuki
PY - 2000/7/1
Y1 - 2000/7/1
N2 - Carbonate precursors of Y3Al5O12 (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.
AB - Carbonate precursors of Y3Al5O12 (YAG) were synthesized from a mixed solution of alum and yttrium nitrate using ammonium hydrogen carbonate as precipitant. Precipitation method (normal-strike or reverse-strike) and aging were found to have dramatic effects on cation homogeneity of the precursor, which in turn influenced the formation temperature of the YAG phase. Reactive YAG powders were produced from the reverse-strike-derived, as-synthesized precursors at temperatures ≤ 1200 °C. These powders densified to >98.0% of the theoretical density up to 1500 °C at a constant heating rate of 8 °C/min or to transparency by vacuum sintering at 1700 °C for 1 h without additives.
UR - http://www.scopus.com/inward/record.url?scp=0034236107&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034236107&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0034236107
VL - 15
SP - 1514
EP - 1523
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 7
ER -